How Do Marketing Agencies Get Clients? 9 Channels Ranked by Speed, Cost and Real Numbers

Short answer: most marketing agencies get clients from referrals first, then outbound (texts, calls, email) once referrals run dry. The agencies that grow past a few clients pick one outbound channel, run enough volume to learn from it, and put every booked call in front of someone who can close. Below is an honest ranking of nine channels, with numbers from our own outreach where we have them.

I ran a roofing marketing agency before ProPlus. Getting appointments was the hard part, not doing the marketing. Once we cracked outbound, that agency grew to $25K a month. ProPlus has spent the last two years doing the same job for 40+ agencies. So this list is written from the seat you are in.

The one question to answer first: what is actually stopping you?

Most agency owners try to fix everything at once: new website, new offer, new niche, new ads. That spreads you thin. Pick the one thing that blocks growth:

• Not enough conversations. You close well when you get on calls, but the calendar is empty. This is a volume problem.
• Conversations, but no closes. Calls happen and go nowhere. This is a sales or offer problem. More leads will not fix it.
• Clients, but they leave. Usually a client-selection problem. Small, broke clients churn because their own business is struggling.

Everything below is about the first problem: getting more qualified business owners on your calendar.

How marketing agencies get clients: 9 channels ranked

1. Referrals: best quality, worst control

Referred clients close fast and stay longer. The problem: you cannot turn them up when you need two more clients next month. Ask every happy client for one introduction. Then build a second channel you control.

2. Cold SMS to owner mobiles: fast, if you do it right

This is the channel we know best. We have looked at more than 1.1 million cold texts across 32 SMS accounts. Here is what the numbers say:

• The opener matters more than anything. On 228,809 texts to contractors, a plain “I have people who need this work, quick call?” style opener got 3.47% positive replies over 22,991 sends. A “partnership” style opener got 0.49% over 5,659 sends. That is about 7 times worse.
• Text the owner, not the front desk. For $1M+ businesses, texting the number on the business listing got about a quarter of the positive rate of texting the owner’s own mobile, and 46% of replies were STOP.
• Bigger is not always better. Across all accounts in 2026, the real “yes” rate from $1M+ businesses was 0.30%. Very established firms (25+ staff, 50+ reviews) replied at about a third of the rate of smaller owner-run shops.
• It is cheap to send. Carrier cost is about $0.0079 per message segment. 1,500 texts costs roughly $12 to send. The real cost is the list and the person working the replies.

Our rule: do not judge a campaign before 1,500 texts. Below that, a good or bad week is mostly luck.

3. Cold calling: works, but burns hours

Calling still books meetings. But most dials hit voicemail or a gatekeeper, so the cost is caller time. It works best as a second step: text first, call the people who reply.

4. Cold email: good for office businesses

Email is cheap at scale, but needs warmed-up domains and careful setup to land in the inbox. Contractors and trades often live on their phone, not their inbox, so email tends to work better for agencies selling to law firms, clinics or SaaS.

5. LinkedIn outreach: slow but trusted

Strong if your buyers post on LinkedIn. Weak for most local trades. Plan on weeks, not days.

6. Paid ads for your own agency: expensive tuition

Ads can work, but agency owners are some of the most targeted buyers online. Without a proven offer and funnel, you pay a lot to learn. Run ads after you know which message closes.

7. SEO and content: plant it now, harvest later

Content compounds, but most new pages take months to rank. It will not fix this quarter. Start it alongside a faster channel.

8. Partnerships and white-label: good if you have a specialty

If you do something other agencies cannot (for example, Google Local Services Ads for plumbers), offer it to them as white-label. It is slow to set up but low cost.

9. Outsourced appointment setting: buy back your time

Someone else finds owners, starts the conversation and books calls on your calendar. You pay in one of three ways: per lead, per booked call, or per show. Per show is the only one where you never pay for a no-show. Industry no-show rates of 36–42% are common, so that difference is real money. We cover the pricing models in our guide to lead generation for marketing agencies.

What Reddit asks about getting agency clients (and straight answers)

“As a new digital marketing agency, how do we hire an appointment setter?”

Hire for one job only: start conversations and book calls. Pay a small base plus a bonus per call that actually happens, not per call booked. Give them a short script, a list of owner mobiles and a calendar link. Review their conversations every week. If you cannot manage a setter yet, outsource on a per-show basis until you can.

“Any appointment setting companies that are legit?”

Ask three things. What exactly counts as a billable call? Do I pay for no-shows? Can I see real conversations from another client? A legit company answers all three in writing. If they only talk about “leads” and dodge the no-show question, walk.

“Have you ever outsourced B2B appointment setting? Was it worth it?”

It is worth it when you can close and your problem is volume. It is a waste when your calls are not closing, because more calls just means more lost calls. Fix the close first.

The math: how many calls you need for a new client

Work backward from the goal. Say you want 3 new clients and you close 1 in 5 qualified calls. You need about 15 calls that actually happen. If 1 in 5 booked calls no-shows, you need about 19 booked calls. Now you know your weekly number, and you can judge any channel by cost per call that shows up.

That is the number we sell on. ProPlus texts the owners your agency serves, a human setter qualifies the ones who reply, and you pay only when a qualified owner joins your call: $1,200 one-time setup and $250 per qualified show. See how pay-per-show works.

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Related

• Case studies: agencies ProPlus has booked calls for
• Pricing: $1,200 setup + $250 per qualified show
• What counts as a qualified show
• All articles